Vehicular spraying machine



DM.. m, w49 w. s. LAPF 22,491,818

VEHI CULAR SPRAYING MACHINE Filed July 15, 1946 Patented Dec. 20, 1949 UNITED S TATES PAT ENT OFFICE 2,491,818 VEHICULAR SPRAYING MACHINE Walter S. Lapp, Lansdale, Pm

Application July 13, 1946,1SerialnNo. 683,473.'

2 Claims.

My' invention relates to improvements in a turf spraying machine for delivering a spray of suitable material depending upon the nature of thevegetation to be effected.

It is a principal object of the present invention to provide a` vehicular spraying machine for delivering, onto a selected area, solutions of materials such as hormone herbicides (weed killers), fertilizers or nutrients; growth promoting. or growth inhibiting'materials, insecticides or fungicides, oil, or dyes.

It is a further object of the present invention to4 provide a` vehicular spraying machine which maybe easily'propelled by the. user for the application of uid` materials in spray form and regulated as to quantityV and location of spray delivery.

Other objects and advantageous features of the invention will be apparent from the specification and claims.

Referring to the drawings which illustrate merely by way of example suitable embodiments of my invention;

Fig. l is a side elevation of the device containing the invention.

Fig. 2 is a front elevation of the same.

Fig. 3 is a plan view of the frame in the horizontal plane beneath the tank.

Fig. 4 is a sectional view of the Wheel-supported frame.

Fig. 5 is a detail on an enlarged scale of the spring wheel control, on line 5 5 of Fig. 3.

Fig. 6 is a view on an enlarged scale showing means for gear control of the pump.

Fig. 7 is a detail on an enlarged scale of an alternative mechanism for actuating the check valve.

Fig. 8 is a sectional View of the strainer and drain.

Similar numerals refer throughout the several views.

Referring now more particularly to the drawings, the spraying machine in accordance with the present invention preferably includes a supporting frame Ill illustrated as rectangular in horizontal cross section, and having a tank I2 carried thereon and extending thereabove. The frame IU has a transversely disposed axle II, at the outer ends of which freely pivoted wheels I8 are mounted for supporting the frame Il) and the i to similar parts f.

a' pivotallymounted ground rest or support I'Biis:

thereof'. A spring 22a is interposed on each side` between the frame Ill` and the ratchet collar 22 for normally urging the ratchet collar 22 into engagement with a serrated collar 23, each of the Wheels I8 havinga collar 23 secured thereto. The serrations of the collar 22 and the collar 23 are disposed so that upon forward movementV of the. sprayer, which is eiected by pushing the handle |4 a rotary motion is imparted to the axle' through the collars 22v and 23, and upon backward movement the collar 23 is capable of rotating without turning the collar 22. The axle has mounted thereon, for rotation therewith, a gear I9 in engagement with a gear |`9a carried on a shaft I9b, also journaled in the frame I8 at its inner end, and the shaft ISD is provided with a beveled gear 20 in engagement with a beveled gear 28a. carried on a shaft 20h of a rotary pump 2|.

The casing of the pump 2|, at the inlet side, has a pipe I3 in communication therewith and with the tank I2, a strainer 28 being provided in the tank for preventing foreign matter from entering the pump connection I3. Below the strain er 28 a clean drain 21 is provided for draining the material from the tank, if desired.

The discharge side of the pump 2| is connected by a pipe I 3a through a check valve 26 to a transversely disposed pipe 29 having a central branch 30 and side branches 3| and 32. Each of the branch pipes 38, 3| and 32 is provided at the front end thereof with a spray nozzle II, valves 24 being provided in the pipe 29 for controlling the delivery to the respective nozzles |"l and permitting the use of one or more of the nozzles Il, as desired.

It will be noted that the main body of liquid is carried in the tank I2 and by the frame Il] and supported by the wheels I8. Upon advancing movement of the spraying machine by pushing the handle I4, the wheels I8, through either or both ratchet collars 22 or 23, effect a driving of the axle I| and this driving movement is effective through the gears I9 and |9a, the shaft Ilb, and the beveled gears 28* and 28a, for driving the pump 2| and effecting the delivery of liquid by the pump through the pipes |3a, 29, 30',

3l and 32 to the nozzles I1 in accordance with the positioning of the valves 24. So long as the vehicle is advanced, liquid from the tank I'2 will be delivered and sprayed through the selected nozzles l1.

Upon discontinuance of forward movement of the spraying machine, spraying will be discontinued since the pump 2l is no longer actuated. The check valve 25 prevents the return of liquid to the pump 20 and also prevents dripping from the nozzles I1 when the machine is standing idle. The machine, if not being used, is preferably supported by the support I6.

It will be noted that the supply of spray may be distributed on one or both sides of the machine and onto the turf or other desired surface, and the delivery is controlled by the advancing movement of the spraying machine. The advance movement is utilized for providing the power for spraying and distribution of the spray. The weight of the liquid in the tank tends to hold the sprayer with the wheels I8 in frictional engagement with the ground, turf, or other surface along which the spraying machine is to be moved.

What I claim is:

1. In a vehicular spraying machine, a supporting frame, a handle connected to said frame and extending rearwardly therefrom for manual movement thereof, a tank carried by and extending upwardly from said frame, a transverse 1y extending shaft inV said frame below said tank, wheels at the outer ends of said shaft for tiltably supporting said frame and tank, a rotary pump carried by said frame below said tank and connected to said tank, a releasable driving connection between said wheels and said pump for driving said pump upon movement of said frame in an advancing direction, and forwardly disposed spray nozzles support by said frame connected to said pump for delivery of liquid in spray form delivered from said pump.

2. In a vehicular spraying machine, a supporting frame, a tank carried by and extending upwardly from said frame, Wheels at opposite sides of said frame for tiltably supporting said frame and tank, a shaft mounted in said frame below said tank on which each of said wheels is journaled, a handle connected to said frame and extending rearwardly therefrom for manual movement of said frame and tank, a rotary pump carried by said frame below said tank and connected to said tank, driving connections including a ratchet between at least one of said wheels and said pump, and a plurality of forwardly disposed nozzles carried by said frame and connected to said pump and disposed below said tank for discharge of liquid delivered by said pump.

WALTER S. LAPP.

REFERENCES CITED The following references are of record in the 

